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Standart: IEC 60502-2

Description: Cu / Al conductors • XLPE insulation • Cu screen • PE sheath

Application:

The single-core cables with insulation of cross-linked polyethylene (XLPE) are designed for transfer and distribution of electrical power with nominal voltage Uo/U U 3.6/6kV; 8.7/15kV и 20/35 kV and frequency 50 Hz in urban and district electrical networks and for electrical supply of transformer’s substations, small and medium industrial plants. They are suitable for use in distribution installations, electric power stations and industrial systems. The cables are for fixed assembly in lines with unlimited difference levels, indoor installations, in cable ducts, conduits and shafts, over shelves and grills directly underground in ditch and outdoor shelter.

Features:

 

 

Cable construction

Technical data
Construction According to IEC 60502-2 Conductor resistance According to BDS904 (IEC60228) class 2
Conductor Сu and Al stranded compacted, according to IEC 60228 class 2 Operating temperature 90° C continuous operation
Short circuit temperature 250° C ( 5 sec.)
Inner semi- conductive layer semi-conductive XLPE compound Overload temperature 130° C /100h per year max./
Insulation XLPE compound
Outer semi- conductive layer semi-conductive XLPE compound
Water resisting element Layer of semi-conductive water absorbing tapes Nominal voltage Uo/U 3.6/6; 8.7/15; 20/35 kV
Highest system voltage Uo/U, no more than 3.6/6; 8.7/15; 20/35 kV
7.2 kV; 18 kV; 42 kV
Test voltage
AC (») - 5 min
DC (=) - 15 min		 3.6/6; 8.7/15; 20/35 kV
12.6 kV; 30 kV; 70 kV
40 kV; 96 kV; 224 kV   
Metal screen Cu wires concentrically laid and one contact of Cu tape with thickness of 0.1mm. Bending radius
15 x Dcable
Level of partial discharge at 2*Uo max. 5 pC
Water resisting element

-I option - water absorbing insulating tape

-II option - water absorbing powder and a layer of plastic tape

 Temperature of laying no less than -20° C
Sheath PE compound Temperature of exploitation -30° C to 50° C
Color black Tests according to IEC 60502-2 or DIN VDE 0276-620
Force of strain in laying N max. Al cores - 30*n*S core
Cu cores - 50*n*S core,
-n-number of cores and -S-nominal cross section of cores in mm

 

 

 

 

 

 

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